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CVE Record

CVE-2022-50835: jbd2: add miss release buffer head in fc_do_one_pass()

In the Linux kernel, the following vulnerability has been resolved: jbd2: add miss release buffer head in fc_do_one_pass() In fc_do_one_pass() miss release buffer head after use which will lead to reference count leak.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50835 is a Linux kernel bug in the jbd2 journaling component. The documented issue is a missed buffer release that can leak references over time. Public data does not provide a CVSS score, attacker requirements, or confirmed business impact.

Executive priority

Treat this as a routine kernel maintenance item unless your vendor rates it higher. There is no public evidence of active exploitation or severity scoring in the provided sources, but kernel resource leaks should still be fixed through normal patch cycles.

Technical view

In fc_do_one_pass() within Linux kernel jbd2, a buffer head is not released after use, causing a reference count leak. The CVE record lists Linux kernel affected version data and multiple stable kernel commits resolving the issue, but no CWE, CVSS, or exploitability details are provided.

Likely exposure

Exposure is most relevant to systems running affected Linux kernel builds in the listed branches. The bundle references Linux versions around 5.10, 5.15, 5.19, 6.0, and 6.1, but the affected range presentation is incomplete.

Exploitation context

No CISA KEV listing is present, and the provided sources do not report active exploitation. The sources also do not state whether exploitation is local, remote, authenticated, or dependent on specific filesystem activity.

Researcher notes

The public record is sparse. It identifies a jbd2 reference count leak and stable commits, but lacks impact analysis, prerequisites, and precise normalized ranges. Validate affectedness through distro advisories and the upstream CVE JSON before assigning operational urgency.

Mitigation direction

  • Check Linux distribution advisories for CVE-2022-50835 applicability and fixed kernel packages.
  • Update to a vendor-supported kernel containing the referenced stable fixes.
  • Prioritize systems with affected kernel branches once vendor exposure is confirmed.
  • If no vendor package is available, follow vendor kernel backport guidance.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and images.
  • Compare installed kernels against vendor advisories for CVE-2022-50835.
  • Confirm whether vendor kernels include one of the referenced stable commits.
  • Document exceptions where affected branches are not in use.
Prepared
Confidence
medium
Sources
7

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2022-50835 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux5b849b5f96b47d82b5a432d8b91a8ad260e1de46, 5b849b5f96b47d82b5a432d8b91a8ad260e1de46, 5b849b5f96b47d82b5a432d8b91a8ad260e1de46, 5b849b5f96b47d82b5a432d8b91a8ad260e1de46, 5b849b5f96b47d82b5a432d8b91a8ad260e1de46unaffected
LinuxLinux5.10, 0, 5.10.150, 5.15.75, 5.19.17, 6.0.3, 6.1affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.